Brass Tee Reducing Product Specification Part No. Pex Size Pex Size 18040 1/2 3/8 18041 1/2 1/2 18042 1/2 3/8 18043 3/4 1/2 18044 3/4 3/4 18045 3/4 1/2 18046 1/2 3/4 18047 3/4 1 18048 1 1/2 18049 1 1 18050 1 1 18051 1 3/4 18052 1 3/4